package/botan: needs thread support

Botan commit 313e439c786d68bcf374b2cb0edfe3ffd891db94 added a
dependency to pthread.h. Add a dependency to thread support.

Fixes:
 - http://autobuild.buildroot.org/results/205/205d7505803990508bbd545393902789063ababd

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/botan/Config.in

@@ -16,6 +16,7 @@ config BR2_PACKAGE_BOTAN
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_10 # C++20
 	depends on BR2_PACKAGE_BOTAN_ARCH_SUPPORTS
+	depends on BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_PACKAGE_BOOST_FILESYSTEM if BR2_PACKAGE_BOOST && BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
 	select BR2_PACKAGE_BOOST_SYSTEM if BR2_PACKAGE_BOOST && BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
 	help
@@ -23,7 +24,8 @@ config BR2_PACKAGE_BOTAN
 
 	  http://botan.randombit.net
 
-comment "botan needs a toolchain w/ C++, gcc >= 10"
+comment "botan needs a toolchain w/ threads, C++, gcc >= 10"
 	depends on !BR2_INSTALL_LIBSTDCPP \
-		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_10
+		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_10 \
+		|| !BR2_TOOLCHAIN_HAS_THREADS
 	depends on BR2_PACKAGE_BOTAN_ARCH_SUPPORTS